Bottle closure and seal.



No. 868,225. PATBNTBD 00T. 15, 1907 y o. SGHNBRT & R. SGHWBITZER.

BOTTLE GLOSURE AND SEAL.

APPLIOATION FILED SEPT. 22,1906.

@Nima smarts Parana osare BOTTLE CLOSURE AND SEAL.

Specification of Letters Patent.

Patented oct. 15,1907.

Application filed September 22, 1906. Serial No. 335,794.

To all whom it 'may concern:

Be' it known that we, CARL SCHNERT, a subject of the Emperor of Austria, and ROBERT SenwErTzEn, Va citizen of the United States of America, both residing at Newark, in the county of Essex and State of New Jersey, have invented new and useful Improvements in Bottle Closures and Seals, of which the following is a specification.

This invention relates to bottle closures and seals of that type comprising a sheet metal cap containing a sealing disk. Caps of this character are usually struck up from tin plates and applied over the mouth of the bottle, the flange of the cap being crimped or interlocked with an external shoulder on the bottle neck. Ordinarily caps of this character require the use of a special construction of capping apparatus to apply the same to the bottle, the resistance of the usual 'imperforate flange of the cap and its tendency Vto spring outward after the compression of the applying device is removed therefrom tending, in many cases, to destroy the effectiveness of the cap as a seal for bottles of that .class containing charged liquids. Another objection Yunsightly and unsanitary.

One of theobjects of the present invention is to' provide ametallic cap vwhich may be easily applied in Vposition without the necessity of exerting'undue cornpression, and which may, therefore, be placed in position on the neck by simpler forms of applying devices bottle and flange of the cap', thus rendering the than those in common use.

Another object of the inven'tion is to provide a cap i .and seal so relatively constructed and arranged that the seal will form a cushion between the neck o'f the I cap loss liable to breakage and avoiding liability of the neck being broken during the act of extracting the cap from the bottle..

A still further object is to provideacap and seal which are siinplerof construction, inexpensive of production and will efiectually prevent leakage of the Furthermore, a-

I Referring to the drawings, l represents the neck of a bottle, which is provided with an annular external rim 2 and an underlying groove 3 forming a shoulder 4 at the base of said rim.

The cap 5 is of conventional form, consisting of la head 6 having a depending annular holding flange 7. In accordance with our invention as disclosed in Figs. .l to 3. inclusive, the flange 7 is provided with annular rows of holes or perforations 8 and 9,` the upper row 8 sufiici'ently weakening the flange adjacent its point of junction with the head 6 to permit said flange to bend more freely at the angle in crimping it inward for engagement with the rim2 and shoulder 4. The lower edge of the flange is cut away or fluted to provide locking tongues l0 spaced at regular intervals apart and separated sufficiently by the intervening recesses to permit them to be bent easily and freely under the shoulder 4, thus obviating the necessity'oi exerting objectionable pressure to crimp or compress said flange into locking engagement with the bottle neck. This bending action of the tongues is further facilitated by arranging the lower set of openings 9 so that they will project partially within the tongues, thus enabling them to 'be bent with greater freedom. This construction permits a very simple form of applying device to be employed to fit the caps on the bottle neck.

In conjunction with the cap we employ a seal comprising a disk l1 adapted to rest in the usual manner to closethe mouth of the bottle or opening in the neck, said disk being provided with a depending flange l2 coextensive or substantially so in depth with the cap flange 7. The seal is vpreferably composed of paper impregnated with paraffin, or some other suitable pore closing medium, and it will be observed that the flange 12 thereof is adapted to be forced by the inward crimping or compression ofthe flange 7 against the side of the rim 2 and under the shoulder 4. By this means a layer or cushion of soft material is interposed between the tlc. thus preventing theiormation of rust and its deposit on the bottle and preventing `direct contact ofthe cap flange with the neck. As a result, the sealing acformed between the flange 7 and rim 2, breakage of the thereon during the extraction of a refractory stoppe will be prevented. Hence there is no liability of inparticles of glassgetting into the bottle and forming a source of danger to the consumer of its contents.

.In Fig. G the construction of the seal is more particularly shown, and therein it will be seen that the lower against the head 5 and between the saine and rim 2 and hard metallic flange of the cap and the neck of the bottion of the disk is greatly increased, and as a cushion is jury`to the bottle from the extraction ofthe cap nor ofy rim by direct pressure by thev hard metallic flange 'i edge of the flange l2 is preferably crimped or corrugated, as shown at 13, allowing the flange to contract for the more effectual compression of the cap flange 7.

IIn the form ot the invention disclosed in Figs. 4 and 5 the cap is oi ordinary torni; but both the head 5a and ange 7a thereof are provided with perforations 14 Closely arranged and forming asieve-like structure. This inode oi weakening the cap material permits the cap to be bent freely into engagement with the rim, while the form oi seal will effectually obviate all liability oi leakage. v i j Having thus described the invention, what is claimed at new, isz- 1. A bottle cap provided at the lower edge of its flange with locking tongues and having perforations therein to secure greater flexibility of the tongues.

2. A bottle cap having a depending fiange provided with a scalloped lower edge forming inwardly bendable locking tongues and providedwith a row of openings partially projecting into said tongues, whereby the metal is weakcned for greater flexibility of the tongues. p

3. A bottle cap having a depending flange provided with a scalloped lower edge forming tongues and upper and lower rows of openings, the upper row of openings being arranged adjacent to the upper edge of the flange and the lower row of openings projecting partially into the tongues to weaken the same, substantially as described 4. As a new article of manufacture, a metallic bottle cap having its flange provided with annular rows of openings, said rows being respectively arranged adjacent the lower edge of the flange and adjacent its point of juncture with the top of the cap.

-5. As a new artcle of manufacture, a metallic bottle cap having its Iiange provided with annular rows of openings, said rows being respectively arranged nearthe lower edge of the flange and near its point of juncture with the` top of the cap, the openings of one row alternating in a1'- rangement with the openings of another row.

6. A bottle seal comprising a cap having weakening openings in the flange thereof, and a flexible seal lining the whole of the interior of the cap, said seal having its flange corrugated to be bent inwardly with the weakened flange of the cap into interlocking engagement. with the shoulder of the bottle. i

In testimony whereof, `we aix our signatures in presence of two witnesses.

CARL sonNnm.

ROBERT SACHWEITZER.

Witnesses 1 EMIL GnnMANUs, Wicnx'r IAW'roimI. 

